PRESSURE REDUCING VALVE DREM30-6X/200YMG24-8K4V
Manufacturer: Bosch Rexroth
Material #: R901402495
Model : DREM30-6X/200YMG24-8K4V
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth DREM30-6X/200YMG24-8K4V (R901402495) is a sophisticated industrial hydraulic valve designed to efficiently reduce system pressure to a pre-set command value. This valve is characterized by its size B, and it operates with an external amplifier with a supply voltage of 24 VDC. The DREM30-6X/200YMG24-8K4V features a spool symbol B A, indicating its function in the hydraulic circuit and has a maximum operating pressure capability.
Equipped with an electrical connection that adheres to the DIN EN standard, this valve ensures secure and reliable connectivity. The product belongs to a group identified by specific ID numbers, which allows for easy categorization and identification within the vast range of Bosch Rexroth products. It offers multiple ports for versatile application and is actuated electrically with external electronics.
This model's size corresponds to CETOP D, making it compatible with standard subplate mounting requirements. Its electrical connector is designed for pole PE configurations, ensuring compatibility with various industrial setups. The maximum flow rate accommodates demanding hydraulic systems while maintaining precise control over pressure regulation.
The type of connection used is subplate mounting, which provides stability and ease of installation in various industrial scenarios. This model allows for two switching positions and has been constructed with durability in mind, as reflected in its weight specification.
Seals made from FKM material ensure that the DREM30-6X/200YMG24-8K4V can handle a wide range of hydraulic fluids including HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR types. The inclusion of an optional check valve between channels A and B adds versatility to the valve's application by facilitating free flow return paths when required.
Furthermore, this model can be optionally equipped with a spring-loaded pressure relief valve that serves as a maximum pressure limitation feature to protect the hydraulic system against excessively high electric control currents at the proportional solenoid. This safety feature ensures that pressures at port A do not exceed safe levels.
In summary, the Bosch Rexroth DREM30-6X/200YMG24-8K4V (R901402495) represents an advanced solution for controlled pressure reduction in high-performance hydraulic systems requiring precise operation and robust construction for reliable long-term use.
$4,342.00 USD
More are expected on September 27, 2024
Status: This product is temporarily out of stock.
Qty: Delivered as early as September 27, 2024 when ordered in
This product is eligible for factory repair.
Size 30, B → A, electrical with external electronics, 24 VDC
Industrial hydraulic valve in a high performance range. Reliable reduction of the pressure to the command value signal.
Unpacked Weight: 9.200 kg
Valve for reducing a system pressure Operation by means of a proportional solenoid Proportional solenoid with rotatable and detachable coil For subplate mounting: porting pattern according to ISO 5781 Optional check valve between A and B Optional maximum pressure limitation For external analog electronics Valve and control electronics from a single source
Valves of type DRE(M) are pilot-operated pressure reducing valves. They are used for operating pressure reduction.
These valves basically consist of a pilot control valve (1) with proportional solenoid (2), a main valve (3) with main spool insert (4), as well as an optional check valve (5).
Type DRE...
The pressure in channel A is set in a command value-dependent form via the proportional solenoid (2).
In rest position – no pressure in channel B –, the spring (11) holds the main spool (4) in its initial position. The connection from channel B to A is open.
The pressure in channel A acts on the bottom side of the main spool in closing direction, and the pressure of the pilot control valve on the spring side of the main spool in the opening direction from channel B to A.
The pilot oil is taken from channel B and flows through the bore (6) to the constant-current control (9) which keeps the pilot flow constant independent of the pressure drop between channel A and B. From the constant-current control (9), the pilot flow flows through the bores (7) via the valve seat (10), passes the valve poppet (8) and is directed into channel Y to the tank.
The pressure required in channel A is preset at the related amplifier. The proportional solenoid pushes the valve poppet (8) in the direction of the valve seat (10) and limits the pressure in the spring chamber (12) to the set value. In the control position of the main spool (4), the hydraulic fluid flows from channel B to A and generates the pressure in channel A (setting of the pilot control valve plus spring (11)). If the set pressure in A is achieved, the forces at the main spool are balanced.
If the actuator at port A does not move (e. g. cylinder piston at stop) and a lower pressure is set for channel A via the proportional solenoid (2), the main spool (4) closes the connection from B to A and simultaneously opens the connection from channel A to the spring chamber (12) of the main spool (4). In this position, the compression volume in channel A can expand via the pilot control valve (1) and port Y.
For the free flow back from channel A to B, a check valve (5) can optionally be installed.
A pressure gauge connection (13) allows for the control of the reduced pressure in channel A.
Type DREM...
For hydraulic protection against an inadmissibly high electric control current at the proportional solenoid, which imperatively results in excessive pressures in port A, you can optionally install a spring-loaded pressure relief valve as maximum pressure limitation (14). The maximum pressure limitation is pre-set based on the relevant pressure rating.
(measured with HLP46, ϑOil = 40 ±5 °C)
Pressure in port P dependent on the command value (flow = 0.8 l/min)
Type DRE(M)
Pressure in channel A dependent on command value (measured with a flow of 0 l/min from B to A as well as related control electronics)
Pressure rating 50 bar
Pressure rating 100 bar
Pressure rating 200 bar
Pressure rating 315 bar
Comparison series 4X-6X / pressure rating 50 bar (with amplifier VT-VSPA1-1-1X with 800 mA coil)
Comparison series 4X-6X / pressure rating 100 bar (with amplifier VT-VSPA1-1-1X with 800 mA coil)
Comparison series 4X-6X / pressure rating 200 bar (with amplifier VT-VSPA1-1-1X with 800 mA coil)
Comparison series 4X-6X / pressure rating 315 bar (with amplifier VT-VSPA1-1-1X with 800 mA coil)
Pressure rating 200 bar (with VT-SSPA1)
Pressure in channel A dependent on the flow Qv
Pressure rating 50 bar
Pressure rating 100 bar
Pressure rating 200 bar
Pressure rating 315 bar
Pressure in port A dependent on pressure in port B
pmin - Qv characteristic curve
Pressure differential from A to B via the check valve
Type DRE-6X/...YM...
Type DREM-6X/...YM...
Type DRE-6X/...Y...
Type DREM-6X/...Y...
Connection at mating connector
Connection at the connector
|
1 |
Upon delivery, this port (G1/4) is closed. After removal of the blanking plug, an external and separate depressurized pilot oil return to the tank is, however, also possible here. |
|
2 |
Space required to remove the mating connector |
|
3 |
Name plate |
|
4 |
Maximum pressure limitation with version DREM and DREME |
|
5 |
Check valve, optional |
|
6 |
Locating pin |
|
7 |
Pilot oil return always external, separate and depressurized to the tank |
|
8 |
Blind counterbore |
|
9 |
Identical seal rings for ports A and B |
|
10 |
Identical seal rings for port Y and blind counterbore (pos. 8) |
|
11 |
Pressure gauge connection G1/4; 12 deep |
|
12 |
mating connector according to DIN EN 175301-803 |
|
13 |
Mating connector according to DIN EN 175201-804 |
|
14 |
Integrated electronics (OBE) |
|
15 |
Space required to remove the mating connector |
|
16 |
Cable fastening |
Recommended valve mounting screws (separate order):
6 hexagon socket head cap screws ISO 4762 - M10 x 70 - 10.9-flZn-240h-L
(Friction coefficient μtotal = 0.09 to 0.14)
Tightening torque MA = 60 Nm ± 10%
Material no. R00002245 (separate order) or
6 hexagon socket head cap screws ISO 4762 - M10 x 70 - 10.9
(Friction coefficient μtotal = 0.12 to 0.17)
Tightening torque MA = 75 Nm ± 10%
Notice:
The dimensions are nominal dimensions which are subject to tolerances.
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
Mating connectors for valves with connector “K4”, without circuitry, standard
3P Z4
For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)Data sheet
Spare parts & repair
Related Products
R901105881
$7,907.00 USD
R961000399
$307.70 USD
R901213621
$9,668.00 USD
R901273234
$3,418.00 USD
R901116051
$14,468.00 USD
